Milan Vučković

Military Technical Institute

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The role of MDCT in renal transplantation-what radiologists need to know

T. Gligoric Milan Vučković D Tasić Dragan Mašulović

Poster: ECR 2018 / C-3064 / The role of MDCT in renal transplantation-what radiologists need to know by: T. Gligoric , M. V. Vuckovic, D. Tasic, D. Masulovic; Belgrade/RS

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MDCT imaging of bronchopulmonary sequestration

Nemanja Menković M. Radović Milan Vučković Ana Petković Marija Bicanin Ilic

Poster: ECR 2014 / C-0809 / MDCT imaging of bronchopulmonary sequestration by: N. Menkovic 1, M. Stefanovic - Radovic1, M. V. Vuckovic1, A. Petkovic1, M. Ilic1, J. Markov2, D. Zoric1, R. STEVIC1, D. Masulovic1; 1Belgrade/RS, 2Vrsac/RS

Bronchopulmonary sequestration

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Numerical modeling of explosively formed projectiles formation

Andjela Mitrović Saša Savić Milan Vučković Nebojša Hristov Damir Jerković

Within this study, the process of forming explosively formed projectiles is analyzed. This type of warhead is used for military purposes due to its excellent impact performance. The projectile is shaped like a metal disc which, during the action of the explosive, forms into a high-speed projectile. Such formed projectiles act on the target. The performance of the projectile is influenced by a large number of parameters, such as structural characteristics and material properties. Using a numerical program on the EFP model, various parameters influencing the final shape of the projectile and thus its performance on the target can be analyzed. The parameters considered within this study are the type of explosive filling and the thickness of the copper disc. The analyzed disc thickness was 1-4% of the explosive filling diameter. It was observed that reducing the thickness of the projectile results in higher values of projectile stable velocity. Specifically, reducing the initial thickness of the projectile can replace the use of more explosive explosives, thereby reducing the overall mass of the construction.

10.5937/oteh24042m

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PREDICTION OF DRAG AERODYNAMIC COEFFICIENT OF THE 155MM PROJECTILE UNDER AXISYMMETRIC FLOW USING DIFFERENT APPROACHES

Journal of the Serbian Society for Computational Mechanics (2023)

Abdellah Ferfouri Toufik Allouche Damir Jerković Nebojša Hristov Milan Vučković

The determination of the total aerodynamic load which negatively influences the movement of artillery projectiles is inevitable and indispensable in order to be able to increase or control their ranges. The main part of this aerodynamic load that has the most influence on projectile movement is the drag force, which acts in the opposite direction to the velocity vector and therefore opposes its movement. From this, in this present work, the total drag coefficient of the 155mm M107 axisymmetric projectile under axisymmetric flow, at zero yaw, was predicted by semi-empirical and computational fluid dynamics (CFD) approaches in the three flow regimes, also the influence of its components on the total drag was analysed. The average deviation of the total drag coefficient in the three flow regimes, compared to the reference experimental results, is 5.7% for the semi-empirical results and 1.7% for the computational results. Analysis of the influence of the total drag components, such as pressure drag, friction drag and base drag, permitted to calculate their influence rates on the total drag as a function of Mach number and flow regime.

Zero-lift drag coefficient

Drag equation

Wave drag

10.24874/jsscm.2023.17.02.06

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